Features: Soft and comfortable: Silicone, comfortable feel and is not easy to slip off, ensuring stable grip during use. Perfect fit: Design specifically for the R400 flip pen, precise cutting ensures smooth and unobstructed operation of all button and interfaces. Anti drop and anti-collision: good cushioning performances, which can effectively protect the page flipping pen from collision and scratches. Protective design: It can effectively prevent dust, dirt, and liquid from entering, keep the page turning pen clean. Lightweight and easy to carry: The protective case is lightweight and small in size, almost without adding weight, making it convenient to carry around. Easy to install and remove: The protective cover is easy to install and remove without affecting the user experience. Specifications: Material: Silicone Color: black, white, orange, rose red, blue, green Size: approx. 11.5x4x2.9cm/4.53x1.57x1.14inch Applicable Model: for R400 Wireless Presenter Purpose: The silicone protective cover of the page turning pen can effectively extend the service life of the page turning pen and improve the overall user experience. Package Includes: 1 Piece Silicone Protective Cover 1 Piece Lanyard note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.